| 摘要 |
A linear electric motor for actuating braking devices particularly for weaving looms and the like, comprising a motor shaft (8) with associated radially-polarized cylindrical permanent magnets which move in a reciprocating manner in a corresponding cavity of a stator (2) provided with excitation coils (6-7) and guiding and supporting bushes (9) for the motor shaft (8), the bushes being made of ceramic material and the motor shaft (8), at least in regions where it is in contact with the bushes, being at least coated with one of the following materials: ceramic material, chromium, plasma. <IMAGE> |
